Ball cock



L-AUHHHUI J. l GARSKE BALL COCK Filed lay 5, 1938 2 Sheets-Sheet 2Patented Oct. 17, 1939 UNITED STATES PATENT OFFICE BALL COCK JosephLawrence Garske, Vallejo, Calif.

Application May 5, 1938, Serial No. 206,265

7 Claims.

This invention relates to an improved ball cock and. refill valve casingassembly for toilet flush tanks or the like.

It is an important aim of this invention topro- "5 vide an improvedrefill apparatus for fiush tanks which will be noiseless in operationand having means whereby the valve is constructed to be non-siphoningshould the pressure in the water I v supply pipe be shut oif and thevalve control- '-l'0 ling the refilling apparatus become displaced fromits valve seat to permit the water to recede from the refilling pipe.

It is a further object of the invention to provide novel means wherebythe pressure of the water in the supply pipe will assist the float inretaining the valve in a closed position.

Other objects and advantages of the invention will hereinafter becomemore fully apparent from the following description of the drawings,which 20 illustrate a preferred form of the invention, and

wherein:

Figure l is a vertical sectional View of a flush tank showing the refillapparatus forming this invention mounted therein, in addition to a flush25 pipe and valve, shown in dotted lines,

Figure 2 is a horizontal sectional view taken on the line 22 of Figure1,

Figure 3 is a vertical sectional view taken on the line 3-3 of Figure 2,and

"30 Figure 4 is a vertical sectional view taken on the line 4--4' ofFigure 2.

Referring more particularly to the drawings wherein like referencecharacters indicate like or corresponding parts throughout the different35 views, designates generally a conventional flush tank, H the flushpipe, l2 the tank outlet fitting having the valve seat I3 to receive thevalve l4 and a branch i5 to receive the lower end of a pipe l6 andcomprising the after flow 40 pipe. Tank I0, and the parts shown indotted lines in Figure 1 including the parts designated H, l2, [3, I4,I5 and 16 are conventional in form and shown merely to illustrate theapplication of the ball cock apparatus designated gen- 45 erally IT.

The ball cock ll includes the threaded end l8 which projects through anopening [9 in the bottom of tank [0 and is secured in a watertightconnection therein by means of the gaskets 50 and nuts designatedgenerally 20. The threaded end I8 is adapted to be secured to a supplypipe, not shown, to furnish water to the passage 2| which has therestricted downwardly extending portion 22 opening into the enlargedcentral por- 55 'tion23 of 'the valve casing 24. Casing 24 forms a partof the ball cock assembly designated generally I1, and has a dependingannular flanged opening 25 in which is slidably mounted the cylindricalportion of a valve designated 26. The cylindrical portion of valve 26 isprovided with an annular groove 21, as best seen in Figure 4,

in which is mounted a sealing ring 28 to prevent leakage through opening25. The reduced upper end 29' of valve 26 is provided with an annularrecess containing a disk shaped packing 30. Pas- 9 sage 22 projects intothe enlarged portion 23 of casing 24 forming a tit 3| adapted to engagethe packing 30 to close the passage 22.

The ball cock I1 is provided with an elbow shaped branch 32 adjacent thebottom of tank I6 having a passage 33 communicating with end i8 andpassage 2i, and an internally threaded outlet in which is mounted thethreaded end of a pipe 34 which projects upwardly therefrom and forms acylinder adapted to receive the depending end of a piston 35. Aninverted cup-shaped washer or gasket, preferably formed of leather orthe like, is secured to the lower end of piston 35 by a screw 31 whichengages a threaded open- A ing 38 in the end of the piston. Cup-shapedwasher 36 is held against the bore of cylinder 34 by the pressure of thewater therein as will hereinafter be described. The opposite end ofpiston 35 engages a recess 39 in the lower end of the valve 26.

One end of a shank of the float 46 is pivotally connected to the portion4! by means of an eye screw 42 as seen in Figures 2 and 3. The shankdesignated 43 has an enlarged portion 44 engaging a slot 45 in piston35, and an internally threaded socket 46 at its free end into which isfitted a threaded end of the rod 41, the opposite end of which isremovably connected to the float 40.

Referring to Figure 4, it will be seen that the enlarged portion 23 ofcasing 24 is provided with a branch 48 disposed at right angles totheplane of passage 2| and communicating with the portion 23. Branch 48 isprovided with an internally threaded depending open end 49 in which ismounted the threaded end of a pipe 56 which depends downwardly therefromand which opens below the plane of the valve seat i3 which forms the lowwater level of the tank ID. Branch 48 is also provided with an upwardlyextending ex- 50 ternally threaded outlet M to which is connected thetube 52 by means of the socket nut'53 and ferrule 54. Tube 52 has arelatively restricted bore, as indicated by the dotted lines in Figure4, as compared with the other passages of the ball 55 cock assembly ii,and has a hooked shaped end 55 which opens into the upper end of thepipe It.

From the foregoing it will be seen, that when rod 56 is raised to liftthe valve M out of engagement with the seat l3, and held in a raisedposition by any suitable means, not shown, until the supply of water intank H) has passed out through pipe H to the toilet fixture, not shown,to be flushed, the float til will fall to the position as seen in Figure1 since the water level in tank ID will be approximately at the level ofvalve seat l3. Float Ml in its lowered position will have opened valve25, so that it will be in the position as seen in Figures 3 and 4thereby permitting the water supplied through the inlet Hi to passupwardly as indicated by the arrows through passage 2l, into theenlarged portion 23 of valve casing 24, through branch at and downwardlythrough pipe 50 to be dispensed through the open end of the pipe 50which is as seen in Figure 1 beneath the level of valve seat l3 andbeneath the low water level. Flush valve I4 now being closed, the waterentering tank it! through pipe 50 will begin to raise the water leveltherein and with it the float 40. At the same time, water will be forcedthrough tube 52 and into pipe l6 due to the back pressure in pipe 5%caused by the pressure of the water in tank is. The water supplied topipe 55 will pass through fitting l2 beneath the valve M, through pipe Hto the toilet bowl, not shown, to supply the after flow for refilling.As the level of the water rises in tank in, float 40 will rise untilpacking 35 engages the tit 35 to close passage 22 to shut ofi the flowthrough 2i. As seen in Figure 4, slot 55 is substantially longer thanthe width of portion Mi so that shank 43 may move relatively thereto. Asa result, when float 4E3 begins to raise the valve 25 the weight of thefloat will be relieved from the piston 35, and the pressure of the waterin cylinder 34 impinging against washer 35 will assist float 4E3 incompletely closing passage 22 when the level of the water in tank H) hasreached a predetermined point.

Since the size of the bore of cylinder 34 is greater than that ofpassage 22, there is a greater pressure against the lower end of piston35 than against the upper end of valve 26 so that the valve will be heldin a fully closed position until the weight of float ll! combined withthe pressure in the upper end of passage 2! overcomes the pressure incylinder 34 to again open the valve, which will occur when the waterlevel has again fallen in tank it). Since pipe 5?] opens beneath the lowwater level of tank ill the refilling of the tank will be accomplishedwithout any noise ordinarily caused by the water entering the tank, andsince valve 26 will positively close passage 22 as soon as it comes intoengagement therewith, as heretofore explained the pressure in the upperend of the passage 2i cannot delay the closing of the valve 26 as isusually the case. As a result, a full flow of water continues until thevalve engages the tit 3! at which time it is immediately and fullyclosed eliminating any noisy vibrations of the valve in closing.

Should for any reason, the pressure in the supply pipe cease and thevalve 25 thereafter become open caused by a fall in the water level inthe tank, the pipe 50 will not siphon the water out of tank i 0 sincethe tube 52 which opens into pipe 16 will act as a vent for the casing24 and the passage 2|.

The construction as illustrated in the drawings may be readily repairedand adjusted, since the only moving parts are the Valve 26, float 40 andpiston 35, which may all be readily removed by merely removing the screw42 after which shank 43 can be disconnected from piston 35, which canthen be lowered in cylinder 34 to disconnect it from valve 26 which maythen be withdrawn from casing 24, after which piston 35 may be raisedinto casing 24 and thus disconnected from cylinder 34 so that it can beremoved.

Various modifications and changes in the construction and arrangement ofthe parts forming the invention may obviously be made and arecontemplated without departing from the underlying principles thereof,and the right is expressly reserved to make such variations and changesin the construction and arrangement of the parts forming the inventionas do not depart from the spirit and scope of the appended claims.

I claim as my invention:

1. A device of the class described comprising a casing adapted to beconnected to a supply pipe, a pipe forming a part of said casing andextending upwardly, a depending valve casing formed integral with theupper end of said pipe and communicating therewith, a valve slidablymounted therein and adapted to close said valve casing, said pipe beingprovided with an elbow joint adjacent its lower end and openingupwardly, a pipe extending upwardly from the open end of said jointforming a cylinder open at its upper end, a piston slidably mounted insaid cylinder having its upper end in engagement with said valve, 2.float pivotally connected to said pipe and connected to the piston toactuate said valve, and an outlet pipe connected to and communicatingwith said valve casing and depending therefrom, said valve being adaptedto be closed by the combined upward movement of the float and thepressure on the lower end of said piston.

2. In a device of the class described, a valve casing assembly adaptedto be connected to a supply pipe, said assembly including a pipeextending upwardly and having an enlarged depending valve casing formedintegral with its upper end and communicating with the pipe, said valvecasing having a restricted flanged opening at its lower end, a valveslidably mounted in said opening and provided with a recess in itsbottom, a cylinder connected to said assembly and communicating withsaid pipe, a piston slidably mounted in said cylinder and having itsupper free end in engagement with the recess of said valve, a floatpivotally connected to said assembly and operably connected to saidpiston, and an outlet pipe communicating with said valve casing anddepending therefrom, said valve being raised by the rising of the floatto close the communication between the valve casing and pipe, saidpiston cooperating with the float in closing said valve.

3. A refill pipe for toilet flush tanks adapted to be connected to asupply pipe, a valve casing formed integral with the upper end of saidpipe, communicating therewith and depending therefrom, a valve slidablymounted in said casing, a cylinder connected to said pipe and disposedbeneath and in spaced relationship to said Valve casing, a piston havingone end slidably mounted in said cylinder and the opposite endpositioned to abut against the lower end of said valve, an outlet pipecommunicating with said valve casing and opening at substantially thelevel of the lower end of the refill pipe, and a float pivotallyconnected to said pipe and operably connected to said piston to raisethe valve to close the passage between the pipe and valve casing whenthe float rises, the pressure of the water on the lower end of saidpiston cooperating with said float to close the valve, said valve beingopened by the pressure in the pipe when the piston is retracted by thefloat.

4. In a noiseless refill pipe for toilet flush tanks, a pipe having amain passage and a branch passage, a valve casing formed integral withsaid pipe and having an inlet communicating with the main passage of thepipe, a cylinder connected to the branch passage of said pipe anddisposed beneath and spaced from said casing, a float adapted to beoperated by the liquid level in said tank, a piston having one endmounted in said cylinder and operably connected to said float, a valveslidably mounted in the casing and operably connected to said pistonwhereby upward movement of said float aided by the liquid pressure insaid cylinder moves the valve to close the inlet to the casing, saidcasing having an outlet spaced from said inlet, said piston beingretracted out of engagement with said valve by the downward movement ofsaid float so that the valve will be opened by pressure in the pipe.

5. A device of the class described comprising a liquid supply pipe forflush tanks having a restricted depending outlet end, a valve casingformed integral with and depending from said outlet end, said casinghaving a restricted open end, a valve slidably mounted in said casingend to close the outlet end of said pipe, said valve having a recess inits bottom, a tube disposed beneath said valve casing and communicatingwith said supply pipe, a piston mounted in said tube and having itsupper end extending into the recess in the valve, and a float having alever pivotally connected to the supply pipe and in engagement with saidpiston, said float being adapted to be actuated by the liquid level inthe flush tank for actuating the valve, and the piston being adapted tobe urged upwardly by liquid pressure in said tube to co-act with thefloat for closing the valve.

6. A flush tank valve comprising a valve casing mounted on the outletend of a liquid supply pipe and having an outlet in its side, saidcasing having an annular flanged opening aligned with the outlet end ofthe supply pipe, a valve slidably mounted in said flanged opening forclosing the outlet end of the supply pipe when in a fully closedposition, said valve having a recess in its outer end, a cylinder havingone end connected to and communicating with said supply pipe, a pistonhaving one end slidably mounted in the cylinder and its opposite endprojecting into the recess in the valve, said piston having a slotadjacent said last mentioned end, and a float, adapted to be actuated bythe liquid level in a flush tank, having an arm extending through theslot and pivotally connected at its free end to the supply pipe forclosing said valve, the piston being adapted to be urged by liquidpressure in said tube to co-act with the float in closing the valve.

7. A flush tank valve comprising a valve casing mounted on the outletend of a supply pipe and having an open cylindrical walled end, a valveslidably and movably mounted in said open end and having one endprojecting into the casing to engage and close the outlet end of saidpipe, the valve being adapted to be urged to an open position by liquidpressure in said pipe, a cylinder spaced from said casing, a pistonslidably mounted therein and having one end engaging the outer end ofsaid valve, said cylinder communicating with said supply pipe wherebythe pressure therein will urge the piston outwardly to counterbalancethe outward pressure in the valve, and float means, adapted to beactuated by the liquid level in a tank, connected to said piston to moveit toward the valve for closing it and for moving it away from the valvewhereby the valve will be opened by the pressure in the supply pipe.

J. LAWRENCE GARSKE.

